[Bug 246269] Re: Switched from vesafb to uvesafb, but uvesafb can't work without v86d

[Harvey Muller]

Andre,

Your problem is most likely due to using incorrect modes on the kernel
parameter line, and not a confirmation of the bug.  The documentation in
the kernel describes the correct method (Documentation/fb/uvesafb.txt):

    video=uvesafb:1024x768-32,mtrr:3,ywrap

The specific mode that you use would depend on your hardware and
supported modes.  On an Inspiron 1420 with integrated Nvidia 8400M GS
graphics this mode works like a champ:

    video=uvesafb:1440x900,mtrr:3,ywrap

The documentation also describes how you may determine supported modes,
note that v86d must be properly installed and the uvesafb module loaded:

    $ less /sys/bus/platform/drivers/uvesafb/uvesafb.0/vbe_modes

If the uvesafb.0 directory is not present, then you can assume that you
have not properly installed v86d and/or loaded the uvesafb module.

Once you have the correct mode, and v86d is installed and you are still
having problems at boot, then you should suspect a problem with the
initramfs.  At this point I would guess the v86d executable is probably
missing from the initramfs.

In the last case, I would return and report the issue.

Thanks,

Harvey

-- 
Switched from vesafb to uvesafb, but uvesafb can't work without v86d
https://bugs.launchpad.net/bugs/246269
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